[cmake-developers] Printing the origin of include dirs

[Stephen Kelly]

Brad King wrote: 

> On 12/18/2012 11:02 AM, Stephen Kelly wrote:
>> Yes. Do you have any idea of what you'd like to see generalized? The
>> interception and struct for handling the INCLUDE_DIRECTORIES property
>> itself?
> 
> The cmPropertyMap/cmProperty infrastructure could potentially store
> structures with the string values plus meta-data instead of just the
> strings as now.

That sounds more complex to me. Would the possible meta-data be defined as a 
c++ struct? What would it contain?

> Then we would not need special cases for certain
> properties in the C++ logic, just some kind of a boolean or enum of
> possible behaviors that is kept with the property value or perhaps its
> definition.

That also seems to take away the possibility of storing compiled generators 
and evaluating them multiple times.
 
>> That would be fine if the arg can be a list.
>> 
>>  set(CMAKE_DEBUG_TARGET_PROPERTIES
>>     "INCLUDE_DIRECTORIES;COMPILE_DEFINITIONS"
>>  )
>> 
>> but then I don't think it's much better than:
>> 
>>  set(CMAKE_DEBUG_TARGET_INCLUDE_DIRECTORIES ON)
>>  set(CMAKE_DEBUG_TARGET_COMPILE_DEFINITIONS ON)
> 
> The first one would generalize better and avoid special handling in
> C++ for each property.

Fair enough.

Thanks,

Steve.